Direct observation of impurity-induced magnetism in an S = 1/2 antiferromagnetic Heisenberg 2-leg spin ladder

Abstract

Nuclear magnetic resonance and magnetization measurements were used to probe the magnetic features of single-crystalline Bi(Cu(1-x)Znx)2PO6 with 0<x<0.05 at temperatures between 2.6 K and 300 K. The simple lineshape of the 31P NMR signals of the pristine compound changes considerably for x>0 and we present clear evidence for a temperature dependent variation of the local magnetization close to the Zn sites. The generic nature of this observation is indicated by results of model calculations on appropriate spin systems of limited size employing QMC methods.

4 pages, 4 figures

References in corpus (5)

• The ALPS project release 1.3: open source software for strongly correlated systems
• Quantum magnetism and criticality
• Controlling Luttinger liquid physics in spin ladders under a magnetic field
• Direct Observation of Magnon Fractionalization in the Quantum Spin Ladder
• Spin-gap behaviour in the 2-leg spin-ladder BiCu2PO6

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